Given： 6. 7. 8. and a custom tag handler for foo which extends TagSupport. Which two are true about thetag handler referenced by foo？（）

A. The doStartTag method is called once.
B. The doAfterBody method is NOT called.
C. The EVAL_PAGE constant is a valid return value for the doEndTag method.
D. The SKIP_PAGE constant is a valid return value for the doStartTag method.
E. The EVAL_BODY_BUFFERED constant is a valid return value for the doStartTag method.